ci: add ci to run tests #4

	name: CI

	on:
	push:
	branches:
	- master
	pull_request:
	types: [opened, synchronize]

	jobs:
	build-and-test:
	runs-on: ubuntu-latest

	env:
	VERILATOR_VERSION: "v5.024"

	steps:
	- name: Checkout repository
	uses: actions/checkout@v2

	- name: Cache Verilator build
	id: cache-verilator
	uses: actions/cache@v2
	with:
	path: ~/verilator_bin
	key: verilator-${{ env.VERILATOR_VERSION }}
	restore-keys: verilator-

	- name: Install dependencies and build Verilator
	if: steps.cache-verilator.outputs.cache-hit != 'true'
	run: \|
	sudo apt-get update
	sudo apt-get install -y git help2man perl python3 make autoconf g++ flex bison ccache
	sudo apt-get install -y libfl2
	sudo apt-get install -y libfl-dev
	sudo apt-get install -y zlibc zlib1g zlib1g-dev
	git clone https://github.com/verilator/verilator.git
	cd verilator
	git checkout ${{ env.VERILATOR_VERSION }}
	autoconf
	./configure
	make -j$(nproc)
	sudo make install
	# Cache the built Verilator
	mkdir -p ~/verilator_bin
	cp /usr/local/bin/verilator* ~/verilator_bin

	- name: Use cached Verilator if available
	if: steps.cache-verilator.outputs.cache-hit == 'true'
	run: \|
	sudo cp ~/verilator_bin/* /usr/local/bin/

	- name: Change to tests directory
	run: cd tests

	- name: Run tests
	run: make

	- name: Parse test results
	uses: mikepenz/action-junit-report@v2
	if: always()
	with:
	report_paths: '**/tests.xml'

	- name: Fail CI if tests fail
	if: failure()
	run: exit 1

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